Vulnerability · Published May 12, 2021 · Assigned by siemens

CVE-2021-27396

High 7.8

In plain English

A high-severity stack buffer overflow in Tecnomatix Plant Simulation from Siemens. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.5% (higher than 73% of all known vulnerabilities).

Severity (CVSS NVD)7.8High

Exploit odds (30 days)1.5%top 26.5% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official description

A vulnerability has been identified in Tecnomatix Plant Simulation (All versions < V16.0.5). The PlantSimCore.dll library lacks proper validation of user-supplied data when parsing SPP files. This could result in a stack based buffer overflow, a different vulnerability than CVE-2021-27398. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13279)

Affected products (as reported)

Vendor	Product	Versions
Siemens	Tecnomatix Plant Simulation	All versions < V16.0.5

Weakness: CWE-121

References

https://cert-portal.siemens.com/productcert/pdf/ssa-983548.pdf x_refsource_MISC
https://www.zerodayinitiative.com/advisories/ZDI-21-568/ x_refsource_MISC